Rose not planted correctly

I had a rose bought for me and my husband planted it, but it is not deep enough, the graft joint is about 15cms above the ground. The rose is flowering but I am worried that it may be subject to problems later. Should I replant it now, wait until later or leave it as it is?

..leave it for now and replant in November...so that the scion is either level with soil or just below [my preference].... then you could treat it as a bare root rose if you wanted...removing the compost and soil and spreading the roots out...depends how much root ball you get with it.... not a problem at that time of year...

I'd replant in autumn when the soil is still warm and will encourage new root formation. Water well before you dig it up and again after replanting. . Plant it with the graft join one to two inches below soil level. Give it a mulch of well rootted compost or manure

Like mine, your husband needs some training but he scores points for trying.